Glossary Terms (Simple List)
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Filter Element
The basic filter unit from which cartridges or capsules are assembled. (TR26)
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Filter Rating
A numerical rating of filter performance based on the ability of the filter to retain an appropriate model microorganism under given test conditions. (TR75)
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Filterability Test
A test to determine the suitability and sizing of a filter with a given fluid. (TR26)
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Filtrate
Fluid that has been passed through a process step (filter). [Synonym: Permeate] (TR15) (TR26)
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Filtrate Pressure
The pressure measured at the outlet side of the tangential flow filter device containing filtered material. [Synonym: permeate pressure] (TR15)
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Filtration
A process of removing particles from a fluid by passing it through a permeable material, such as a membrane film. (TR41)
The process by which particles are removed from a fluid by passing the fluid through a porous material. (TR26)
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Finished Materials
This term refers to items such as drug substances, drug products, finished product held in bulk before final packaging, and clinical trial materials that are likely to be stored for significant periods of time and are also subject to the risks of distribution. (TR53)
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First Air
Refers to the air exiting at the face of HEPA filters. Based on the airflow through HEPA filters and its unidirectional air flow the air exiting at the filter face is for the purposed of aseptic processing free of particulate contamination (both viable and non-viable). (TR70)
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First Air (First Work Location)
The work location first in the path of HEPA filtered air. (TR62)
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First Expiration, First Out (FeFo)
A method of controlling inventory to ensure that the material with the shortest remaining shelf-life is distributed first. (TR52)